Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscosity above…
In a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement ?
A. Results in higher shell side pressure drop
B. Can accomodate less number of tubes for a given shell diameter
The average velocity in the tubes of a 1-4 heat exchanger is ______________ times that in 1-1 heat exchanger having the same size & number of tubes and operated at same liquid flow rate ?
B. 1/2C. 4
A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is________________?
Ratio of tube length to shell diameter for a shell and tube heat exchanger is________________?
A. 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers
B. 4 : 1 to 8 : 1 for liquid-liquid exchanger
C. < 4 : 1 for…